Non-rebound inelastic hammer

Abstract

The utility model belongs to the technical field of mechanical installation, particularly relates to a non-rebounding inelastic hammer, and aims to solve the problems that when an existing hammer is used for installing precision parts in a knocking mode, the rebounding phenomenon cannot be avoided in the knocking process of a common hammer, and rebounding of a hammer head cannot be controlled in the forced knocking process. The hammer comprises a hammer body, wherein a hammer handle is fixed on the surface of the hammer body; a buffer gap is formed in the hammer body, a limiting rod is fixed in the buffer gap, a plurality of round steel sheets are arranged on the surface of the limiting rod in a sliding mode, the radius of each round steel sheet is smaller than that of the buffer gap, and the round steel sheets fill two thirds of the space in the buffer gap; a hammer head for hammering is arranged at the side end of the hammer body; when in use, the hammer has the effects of no rebounding, no injury to hands, higher accuracy and no rebounding, is more suitable for the installation of precision parts, and can adapt to different working requirements by replacing hammer heads made of different materials.

Description

Technical Field

[0001] This utility model relates to the field of mechanical installation technology, and in particular to a non-rebounding, non-elastic hammer. Background Technology

[0002] During the installation of precision mechanical equipment, the installation process often requires hammering the precision components to ensure a precise fit.

[0003] In actual installation, we found that when using hammers to install precision parts, ordinary hammers inevitably exhibit a rebound phenomenon during the hammering process. When hammering with force, it is impossible to control the rebound of the hammer head. The harder the hammer is hammered, the more obvious and difficult it is to control the rebound of the hammer head. The rebounded hammer head is difficult to control and will inevitably cause some damage to the precision parts being installed. On the other hand, reducing the hammering force in order to minimize the rebound of the hammer head does not meet the installation requirements and fails to achieve the purpose of installation.

[0004] At the same time, the rebound of the hammer head during installation will also cause a certain amount of vibration and impact to the hand of the person using the tool, which can easily cause some damage with prolonged use. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the prior art, when installing precision parts by striking, ordinary hammers inevitably rebound during the striking process, and the rebound of the hammer head cannot be controlled when striking with force. Therefore, this invention proposes a non-rebounding, non-elastic hammer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A non-rebound, non-elastic hammer includes a hammer body, and a hammer handle is fixed to the surface of the hammer body.

[0008] The hammer body has a buffer gap, a limit rod is fixed in the buffer gap, and multiple circular steel plates slide on the surface of the limit rod. The radii of the multiple circular steel plates are all smaller than the radius of the buffer gap, and the multiple circular steel plates fill two-thirds of the space in the buffer gap.

[0009] The hammer body has a hammer head for hammering at its side end, and a set of connecting components is provided between the hammer body and the hammer head for fixing the hammer head to the hammer body.

[0010] And a positioning component used in conjunction with the connecting component, the positioning component being used to limit the position of the hammer head.

[0011] In one possible design, the connecting assembly includes a threaded rod fixed to the side end of the hammer body, and the hammer head has a threaded groove that matches the threaded rod, with the threaded rod threadedly connected to the threaded groove.

[0012] In one possible design, the positioning component includes a first groove formed in the threaded rod, two positioning blocks sliding in the first groove, a positioning spring fixed between the two positioning blocks, and an annular positioning groove connected to the threaded groove in the hammer head, with both positioning blocks engaging with the annular positioning groove.

[0013] In one possible design, the positioning component further includes a second groove formed in the hammer body, in which two slide rods are fixed, and the same slide plate slides on the surfaces of the two slide rods. Each of the two positioning blocks has a pressing groove, and two pressing rods are fixed at the top of the slide plate. The two pressing rods move upward and penetrate into the two pressing grooves respectively, and the two pressing rods make pressing contact with the inclined surfaces of the two pressing grooves respectively.

[0014] In one possible design, two return springs are fixed to the top of the slide plate, and the side ends of the two return springs are fixed in the second groove. The two return springs are respectively sleeved on the surface of the two slide rods. A toggle ring is fixed to the surface of the slide plate and is slidably sleeved on the surface of the hammer body.

[0015] In one possible design, a grip sleeve is fixed to the tail end of the hammer handle surface.

[0016] In this application, when the hammer body strikes, the circular steel plate slides within the buffer gap. At the same time, the circular steel plate is limited by the limiting rod to move up and down effectively, avoiding vibration. This makes the striking more precise. The internal circular steel plate counteracts the rebound force generated during the strike. According to the momentum theorem, the internal circular steel plate of this hammer body can play a shock-absorbing role when the force is large during repeated strikes, and a boosting effect when the striking force is small.

[0017] By twisting the hammer head to move it on the surface of the threaded rod, the hammer head is threaded onto the surface of the threaded rod, fixing the hammer head to the surface of the threaded rod. After the hammer head is installed, the positioning block will be pushed into the annular positioning groove due to the elasticity of the positioning spring. The positioning block limits the hammer head and can keep the hammer head stable. When it is necessary to disassemble and replace the hammer head, the sliding plate is moved by turning the toggle ring. The sliding plate moves the extrusion rod upward. The two extrusion rods respectively extrude the inclined surfaces of the two extrusion grooves. The two positioning blocks move in the direction of approaching each other. Both positioning blocks leave the annular positioning groove. At this time, the hammer head can be twisted to leave the surface of the threaded rod.

[0018] Beneficial effects

[0019] In this invention, a non-rebounding, springless hammer is provided with a threaded rod, a threaded groove, positioning blocks, an annular positioning groove, and a positioning spring. When the threaded rod is screwed into the threaded groove, the two positioning blocks are engaged in the annular positioning groove under the elastic force of the positioning spring, thereby limiting the position of the hammer head and preventing it from becoming loose.

[0020] In this utility model, a non-rebound, non-elastic hammer is provided with a first groove, a pressing groove, a pressing rod, a second groove, a sliding rod, a return spring, a sliding plate, and a toggle ring. When the sliding plate slides down, the two pressing rods will press and contact the inclined surfaces of the two pressing grooves respectively. At this time, the two pressing rods will push the two positioning blocks to move in opposite directions, thereby causing the two positioning blocks to disengage from the annular positioning groove. At this time, the hammer head can be removed from the hammer body, which is convenient for disassembly and replacement of the hammer head.

[0021] In this invention, there is no rebound during use, it does not hurt hands, and it is more precise. The rebound-free effect makes it more suitable for the installation of precision parts. At the same time, different work requirements can be met by changing the hammer head with different materials. Attached Figure Description

[0022] Figure 1 This is a front perspective view of a non-rebounding, elastic hammer proposed in this utility model;

[0023] Figure 2 This is a cross-sectional view of a non-rebounding, elastic hammer proposed in this utility model;

[0024] Figure 3 This utility model proposes a non-rebounding, elastic-free hammer. Figure 2 A magnified view of a portion of point A in the middle.

[0025] In the diagram: 1. Hammer body; 2. Hammer handle; 3. Grip; 4. Hammer head; 5. Buffer gap; 6. Limiting rod; 8. Circular steel plate; 9. Threaded rod; 10. Threaded groove; 11. Annular positioning groove; 12. Positioning block; 13. First groove; 14. Positioning spring; 15. Extrusion groove; 16. Extrusion rod; 17. Second groove; 18. Slide rod; 19. Return spring; 20. Slide plate; 21. Actuating ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figures 1-3A non-rebound, non-elastic hammer, used in the field of mechanical installation technology, includes a hammer body 1, with a hammer handle 2 fixed to its surface. When the hammer body 1 strikes, a circular steel plate 8 slides within a buffer gap 5. Simultaneously, the circular steel plate 8 is limited by a limiting rod 6 to move effectively up and down, preventing vibration and making the strike more precise. The internal circular steel plate 8 counteracts the rebound force generated during the strike. According to the momentum theorem, under the action of the internal circular steel plate 8 of this hammer body 1, it can achieve a shock-absorbing effect when the force is large during repeated strikes and an assisting effect when the striking force is small.

[0029] The hammer body 1 has a hammer head 4 for hammering at its side end. A set of connecting components is provided between the hammer body 1 and the hammer head 4. The connecting components are used to fix the hammer head 4 to the hammer body 1. A positioning component is used in conjunction with the connecting components to limit the position of the hammer head 4, thereby improving the stability of the hammer head 4 and preventing the hammer head 4 from shaking.

[0030] The connecting assembly includes a threaded rod 9 fixed to the side end of the hammer body 1, and a threaded groove 10 matching the threaded rod 9 is provided in the hammer head 4. The threaded rod 9 is threadedly connected to the threaded groove 10. The arrangement of the threaded rod 9 and the threaded groove 10 facilitates the assembly and disassembly of the hammer head 4.

[0031] Example 2

[0032] refer to Figures 1-3 Based on embodiment 1, the following improvements are made: The positioning component includes a first groove 13 formed in the threaded rod 9, two positioning blocks 12 sliding in the first groove 13, and a positioning spring 14 fixed between the two positioning blocks 12. The hammer head 4 has an annular positioning groove 11 that communicates with the threaded groove 10. Both positioning blocks 12 are engaged with the annular positioning groove 11. When the threaded rod 9 is screwed into the threaded groove 10, the two positioning blocks 12 will be engaged into the annular positioning groove 11 under the action of the elastic force of the positioning spring 14, thereby limiting the position of the hammer head 4 and preventing the hammer head 4 from becoming loose.

[0033] The positioning assembly also includes a second groove 17 formed in the hammer body 1. Two slide rods 18 are fixed in the second groove 17. The same slide plate 20 slides on the surface of the two slide rods 18. Each of the two positioning blocks 12 has a pressing groove 15. Two pressing rods 16 are fixed at the top of the slide plate 20. The two pressing rods 16 move upward and penetrate into the two pressing grooves 15 respectively. The two pressing rods 16 press and contact the inclined surfaces of the two pressing grooves 15 respectively. When the slide plate 20 is slid downward, the two pressing rods 16 will press and contact the inclined surfaces of the two pressing grooves 15 respectively. At this time, the two pressing rods 16 will push the two positioning blocks 12 to move in opposite directions, thereby causing the two positioning blocks 12 to disengage from the annular positioning groove 11. At this time, the hammer head 4 can be removed from the hammer body 1.

[0034] Two return springs 19 are fixed at the top of the slide plate 20. The side ends of the two return springs 19 are fixed in the second groove 17. The two return springs 19 are respectively sleeved on the surface of the two slide rods 18. A toggle ring 21 is fixed on the surface of the slide plate 20. The toggle ring 21 is slidably sleeved on the surface of the hammer body 1. The two return springs 19 can reset the slide plate 20. The toggle ring 21 facilitates the downward sliding of the slide plate 20.

[0035] A grip 3 is fixed to the end of the surface of the hammer handle 2. The grip 3 can improve the comfort of the user's hand and prevent the user's hand from slipping.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A non-rebounding, non-elastic hammer, characterized in that, include: Hammer body (1), and a hammer handle (2) is fixed to the surface of the hammer body (1); The hammer body (1) has a buffer gap (5) inside, and a limit rod (6) is fixed inside the buffer gap (5). Multiple circular steel plates (8) slide on the surface of the limit rod (6). The radius of the multiple circular steel plates (8) is smaller than the radius of the buffer gap (5). The multiple circular steel plates (8) fill two-thirds of the space inside the buffer gap (5). The side end of the hammer body (1) is provided with a hammer head (4) for hammering. A set of connecting components is provided between the hammer body (1) and the hammer head (4). The connecting components are used to fix the hammer head (4) to the hammer body (1). And a positioning component used in conjunction with the connecting component, the positioning component being used to limit the position of the hammer (4).

2. The non-rebounding, non-elastic hammer according to claim 1, characterized in that, The connecting assembly includes a threaded rod (9) fixed to the side end of the hammer body (1), and a threaded groove (10) matching the threaded rod (9) is opened in the hammer head (4), and the threaded rod (9) is threadedly connected to the threaded groove (10).

3. The non-rebounding, elastic hammer according to claim 2, characterized in that, The positioning component includes a first groove (13) formed in the threaded rod (9), two positioning blocks (12) sliding in the first groove (13), a positioning spring (14) fixed between the two positioning blocks (12), and an annular positioning groove (11) connected to the threaded groove (10) in the hammer head (4), and both positioning blocks (12) engaging with the annular positioning groove (11).

4. A non-rebounding, elastic hammer according to claim 3, characterized in that, The positioning assembly also includes a second groove (17) formed in the hammer body (1). Two slide rods (18) are fixed in the second groove (17). The same slide plate (20) slides on the surface of the two slide rods (18). Each of the two positioning blocks (12) is provided with a pressing groove (15). Two pressing rods (16) are fixed at the top of the slide plate (20). The two pressing rods (16) move upward and penetrate into the two pressing grooves (15). The two pressing rods (16) are pressed into contact with the inclined surfaces of the two pressing grooves (15).

5. A non-rebounding, elastic hammer according to claim 4, characterized in that, Two return springs (19) are fixed at the top of the slide plate (20). The side ends of the two return springs (19) are fixed in the second groove (17). The two return springs (19) are respectively sleeved on the surface of the two slide rods (18). A toggle ring (21) is fixed on the surface of the slide plate (20). The toggle ring (21) is slidably sleeved on the surface of the hammer body (1).

6. A non-rebounding, non-elastic hammer according to claim 1, characterized in that, A grip sleeve (3) is fixed to the tail end of the surface of the hammer handle (2).

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